In Word for the web, when a comment has been addressed, you can mark it as resolved to move it out of the active conversation while keeping it available for reference.
Open the document in Word for the web.
Select the comment you want to resolve.
Click Resolve thread (checkmark icon).
Resolved comments no longer appear in the document margin but remain available in the Comments pane. If needed, you can reopen a resolved comment to make it active again.
Tip
Resolving a comment hides it from active review but does not delete it. To permanently remove a comment, use Delete thread instead.
Start reviewing documents in Word for the Web.